Structure 180570019603144 · Dallas County, TX

IH 35e NB over Drainage Ditch

Carries IH 35e NB over Drainage Ditch, 3.2 Mi NW Of Mockingbird.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT286 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

286 ft end to end, longest span 33 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built196165 years old
Length286.1 ft87.2 m
Daily traffic52,733counted 2023
Last inspectedApril 2024every 24 months

Location

StateTexas
CountyDallas
Location3.2 Mi NW Of Mockingbird
CarriesIH 35e NB
CrossesDrainage Ditch
Coordinates32.86072, -96.89232

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length286.1 ft (87.2 m)
Max Span33.1 ft (10.1 m)
Deck Width58.1 ft (17.7 m)
Deck Area1543.4 sq m
Main Spans9
Year Built1961

Traffic

Avg Daily Traffic52,733 (2023)
Truck Traffic10%
Lanes On Bridge3

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical4 — Foundations need monitoring
Structure Number180570019603144

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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